International Journal of Eco-Innovation in Science and Engineering (IJEISE)
Vol. 3 No. 01 (2022): IJEISE

Kinetic modelling on oxalic acid production from candlenut shell through alkaline hydrolysis

Siswanto (Universitas Pembangunan Nasional “Veteran”, East Java, Surabaya, 60294, Indonesia)
Kindriari Nurma Wahyusi (Universitas Pembangunan Nasional “Veteran”, East Java, Surabaya, 60294, Indonesia)
Renova Panjaitan (Universitas Pembangunan Nasional “Veteran”, East Java, Surabaya, 60294, Indonesia)
Ardika Nurmawati (Universitas Pembangunan Nasional “Veteran”, East Java, Surabaya, 60294, Indonesia)
Ellen Oktavia (Universitas Pembangunan Nasional “Veteran”, East Java, Surabaya, 60294, Indonesia)
Hanim Najakha (Universitas Pembangunan Nasional “Veteran”, East Java, Surabaya, 60294, Indonesia)

Article Info

Publish Date
25 May 2022

Abstract

The kinetic reaction of alkaline hydrolysis of candlenut shells to produce oxalic acid was investigated. It was performed for the non-catalyzed solid-liquid heterogeneous reaction in a range time of 30 to 90 minutes and temperature of 60oC to 90oC. This study showed that the reaction fitted the pseudo-first-order model, confirmed from the determinant coefficient value of 0.9182 to 0.9751, and the kinetic constant, evaluated using Arrhenius' law, was k= 0.034751 e^(-140.23⁄T). The rate control mechanism based on the shrinking core model was diffusion control, validated from determinant coefficient near one, from 0.9246 to 0.9766.

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Journal Info
International Journal of Eco-Innovation in Science and Engineering (IJEISE)
Website

Abbrev

ijeise

Publisher

Universitas Pembangunan Nasional Veteran Jawa Timur

Subject

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Description

International Journal of Eco-Innovation in Science and Engineering (IJEISE) covers all topics of Eco-Innovation in Science and technology related research from Chemical Engineering, Environment Engineering, Civil engineering, Industrial Engineering, Food Technology, Agrotechnology and others science ...